Online Parts Store › Phillips Machine Screw - Pan Head. 1/4"-20 x 3" Image 1 of 1 Phillips Machine Screw - Pan Head. 1/4"-20 x 3" $37.73 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Tapping Screw - Pan Head, #8 x 5/8" $18.01 Nylon Insert Locknut - Stainless 3/8-16 $28.40 Lag Screw, 3/8 x 3" $41.46 Stainless Fender Washer #6, .050" Thick, OD 3/4" $19.71 Phillips Tapping Screw - Pan Head, #10 x 5/8" $24.31